Lennox 74W75 Limit Switch 321894-708 While often found in legacy

While often found in legacy Barber Colman installations

panel mount solid state relay designed for demanding HVACR and industrial automation environments

this kit resolves common failure points such as weak high-voltage ignition output or internal self-check errors

Precise OEM Specifications: Direct replacement for Reznor 195034

this motor is rated for 208-230/460V

Lennox 74W75 Limit Switch 321894-708 While often found in legacyThe Lennox 74W75 Limit Switch is a genuine OEM safety component specifically calibrated to open the circuit at 225F, providing essential high limit protection for your heating system. As a Lennox furnace limit switch replacement, this fixed temperature control prevents the heat exchanger from reaching critical temperatures that could lead to structural fatigue or safety hazards. For technicians, installing a genuine Lennox 74W75 ensures the system